Homicidal_Squirrel
Adventurer
Yup... totally an accident. Spies die this way all the time. 

The question I have; did they find a key?
They had to cut the bag open. Those gashes were already on the corpse, and the knife was dirty from carving a raw, bloody steak prior to the opening of the gym bag.
Like becoming a magician that specializes in escapes?Perhaps the body is a very convincing decoy and the real Gareth William's faked his death to do whatever his lifelong passions/ambitions are.